Borate esters

ABSTRACT

A method to prepare a borate complexed polyalkylguanidinium polymer, the method including heating bis(hexamethylene triamine and guanidine chloride to prepare a polyalkylguanidinium chloride, reacting the polyalkylguanidinium chloride with glycidol in an equimolar amount of glycidol and secondary amine functionalities present in the polyalkylguanidinium chloride to prepare a N-2,3-dihydroxypropyl polyalkylguanidinium chloride polymer, and reacting the N-2,3-dihydroxypropyl polyalkylguanidinium chloride polymer with a boron-oxide material to prepare the borate complexed polyalkylguanidinium polymer.

CROSS REFERENCE TO RELATED APPLICATIONS

This Application claims priority to a U.S. Provisional Application Ser.No. 62/017,419, filed Jun. 26, 2014, wherein that ProvisionalApplication is hereby incorporated herein by reference.

FIELD OF THE INVENTION

A composition of matter is disclosed where that composition comprises aborate ester polymer.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be better understood from a reading of the followingdetailed description taken in conjunction with the drawings in whichlike reference designators are used to designate like elements, and inwhich:

The FIGURE recites a plurality of FTIR graphs monitoring the progress ofa reaction between polyethyleneimine and glycidol.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

This invention is described in preferred embodiments in the followingdescription with reference to the FIGURES, in which like numbersrepresent the same or similar elements. Reference throughout thisspecification to “one embodiment,” “an embodiment,” or similar languagemeans that a particular feature, structure, or characteristic describedin connection with the embodiment is included in at least one embodimentof the present invention. Thus, appearances of the phrases “in oneembodiment,” “in an embodiment,” and similar language throughout thisspecification may, but do not necessarily, all refer to the sameembodiment.

The described features, structures, or characteristics of the inventionmay be combined in any suitable manner in one or more embodiments. Inthe following description, numerous specific details are recited toprovide a thorough understanding of embodiments of the invention. Oneskilled in the relevant art will recognize, however, that the inventionmay be practiced without one or more of the specific details, or withother methods, components, materials, and so forth. In other instances,well-known structures, materials, or operations are not shown ordescribed in detail to avoid obscuring aspects of the invention.

The following examples are presented to further illustrate to personsskilled in the art how to make and use Applicant's borate estercompositions. These examples are not intended as a limitation, however,upon the scope of the invention.

Example 1 Preparation of Borate Ester Polymer 7

Polyalkylene guanidine hydrochloride 3 was prepared via neat meltaminolysis reaction between 13647 g bis(hexamethylene triamine) (63.47mol 98% purity INVISTA BHMT triamine) 1 and 6053 g GuanidineHydrochloride (63.36 mol 99% assay Alz Chem) 2 at about 160° C.accompanied by removal of ammonia condensation reaction by-product. Incertain embodiments, 337.21 g Huntsman Jeffamine T-403 AlkoxylatedTriamine (0.77 mol) are also added to this reaction mixture.

The melt was cooled, dissolved in a solvent, and then and heated toabout 30° C. In certain embodiments, 4701.86 g of Glycidol 4 were thenadded in masse to the reactor in a 1:1 molar equivalent stoichiometricratio (e.g. equimolar amount of glycidol to secondary aminefunctionalities present upon the polyalkylguanidinium chloride 3 polymerbackbone) accompanied by rapid stirring to insure a completelyhomogeneous mixture.

In other embodiments, differing substoichiometric ratios of glycidol tosecondary amine molar ratios are utilized. In various embodiments, theglycidol to secondary amine molar ratio ranges from about 0.2 to 1 toabout 2 to 1.

After glycidol addition, the reactor was then heated to approximately35° C. whereby an exothermic reaction ensued producingN-2,3-dihydroxypropyl polyakylguanidinium chloride polymer 5. Effortswere made to keep a peak exothermic reaction temperature below about 54°C.

In certain embodiments, a substoichiometeric amount of glycidol is addedto polymer 3. In these embodiments, the product mixture include bothpolyol 5 and unreacted polyalkylguanidinium chloride 3.

Orthoboric acid 6 was added to the reactor to form a spiroorthoborateester crosslinked polymeric material 7.

In certain embodiments, other boron-oxides can be used in place of boricacid. For example and without limitation in certain embodiments, boraxis used to prepare borate ester polymer 7 from polyol 5. As thoseskilled in the art will appreciate, borax is generally described asNa2B4O7.10H2O. However, it is better formulated as Na₂[B₄O₅(OH)₄].8H2O,since borax contains the [B₄O₅(OH)₄]²⁻ ion. In this structure, there aretwo four-coordinate boron atoms (two BO₄ tetrahedra) and twothree-coordinate boron atoms (two BO₃ triangles).

Borax is also easily converted to boric acid and other borates, whichhave many applications. Borax reaction with hydrochloric acid to formboric acid is:Na₂B₄O₇.10H₂O+2HCl→4H₃BO₃+2NaCl+5H₂O

The formation of polymeric borate ester 7 is described hereinabove indiscrete steps, Applicant's entire synthetic reaction scheme to preparepolymeric borate ester 7 can be performed in “one pot,” as illustratedimmediately hereinbelow.

Chemical Abstracts Service has assigned CAS Registry Number 1480565-79-4for borate ester polymer 7.

TABLE 1 recites the weight percentages of compounds 1, 2, 4, and 6,employed in one embodiment to prepare polymeric borate ester 7.

TABLE 1 Reactant CAS Registry Concentration Reactant Number (Wgt. %)Bis(Hexamethylene)Triamine 143-23-7 48.2 (INVISTA BHMT) GuanidineHydrochloride 50-01-1 21.4 Glycidol 556-52-5 16.6 Boric Acid 10043-35-313.8

Example 2 Preparation of Borate Ester Polymer 10

In certain embodiments, Applicant utilizes a polyethyleneimine (“PEI”) 8as a starting material for preparation of a polymeric borate ester.

In certain embodiments, a slow addition to PEI 8 of glycidol 4 isutilized to alkylate both primary and secondary amine functional groupspresent. In certain embodiments, Applicant utilized PEI sold under thetradename LUPASOL WF. In certain embodiments, the starting PEI 8 has anumber average molecular weight of about 25,000 Daltons. In certainembodiments PEI 8 comprises about 25 mole percent primary amino endgroups, about 50 mole percent secondary amino groups in the polymericbackbone, and about 25 mole percent tertiary amino groups in thepolymeric backbone.

In certain embodiments, a substoichiometeric amount of glycidol 4 isadded to PEI 8. In these embodiments, the product mixture include bothpolyol 9 and unreated PEI 8.

In certain embodiments, a reactor temperature was maintained attemperatures below about 40° C. during the glycidol addition to preventits auto-acceleration.

In certain embodiments, orthoboric acid 6 is added to the PEI/glycidoladduct 9 forming spiroorthoborate crosslinked polymer 10. As thoseskilled in the art will appreciate, the crosslink density of borateester polymer 10 is determined by the molar ratio of boric acid 6 topolyol 9.

TABLE 2 recites the weight percentages of compounds 8, 4, and 6,employed in one embodiment to prepare polymeric borate ester 10.

TABLE 2 Reactant CAS Registry Concentration Reactant Number (Wgt. %)Polyethyleneimine (BASF 9002-98-6 46.75 Lupasol WF) Glycidol (DixieChemical 556-52-5 50.4 Corp.) Boric Acid 10043-35-3 2.85

In certain embodiments, the preparation of intermediate polyol 9 and thesubsequent preparation of borate ester polymer 10 can be performed in a“one pot” synthesis.

Chemical Abstracts Service has assigned CAS Registry Number 1485099-25-9borate ester polymer 10.

Example 3 Preparation of Borate Ester Polymer 11

In certain embodiments, Applicant's borate ester is formed by treating amixture of polyol 5 and polyol 9 with boric acid 6 to form a mixturecomprising polymeric borate ester 7, polymeric borate ester 10, andpolymeric borate ester 11.

The relative amounts of borate ester 7, polymeric borate ester 10, andpolymeric borate ester 11 is a function of the molar ratio of polyol 5to polyol 9, and the molar ratio of the combined polyols 5 and 9 toboric acid 6.

Example 4 Preparation of Borate Ester Polymer 13

In certain embodiments, Applicant prepares a polyol 13 by treating PEI 8with gluconolactone 12.

Example 5A

Polyol 13 was prepared via ring opening aminolysis reaction betweendelta-gluconolactone 12 and polyethyleneimine 8 in propylene glycol. Thesynthesis procedure entailed first dissolving BASF Lupasol WFpolyethyleneimine (PEI) within stirred propylene glycol at 65° C.followed by addition of delta-gluconolactone solid (GLA—Junbunzlauer) tothe PEI solution accompanied by heating the mixture at 85° C. for 10minutes. FTIR Spectra were obtained for various PEI and GLA reactantratios in propylene glycol solvent. A legend for each sample compositionanalyzed via FTIR is presented below. As a point of comparison, FTIRSpectra was also obtained upon a propylene glycol solution containing16.6 weight % gluconolactone reactant.

Example 5B

Applicant has found that Gluconamide substituted PEI 13 forms stiffcoatings when disposed on fabric. Modifications were made to Applicant'sformulation to enhance treated fabric hand and drape.

Applicant discovered that a using a series of substituted,amino-silicones enhance treated garment hand and drape.

Applicant reacts the primary amine groups within these amine functionalsilicones 21 with gluconolactone 12 to form substituted polysiloxane 22comprising pedant hydroxyl groups on both ends, wherein n is betweenabout 50 and about 1000.

In certain embodiments, the gluconamide ring opening reaction isperformed neat. In other embodiments, the gluconamide ring openingreaction is performed in a solvent (e.g. propylene glycol) attemperatures ranging from ambient to 120 Celsius. The resultantgluconamide functionalized silicone 22 is blended with gluconamidesubstituted PEI 20 in various ratios by weight; preferably ranging from0.00000001 to 1000 gluconamide substituted silicone to gluconamidesubstituted PEI ratio.

Borax, boric acid, titanate, silicate and/or zirconate could also beadded to these gluconamide substituted silicone—PEI blends to assist inits compatibilization if needed.

Applicant has found an alternative means of enhancing the hand, drapeand flexibility of gluconamide substituted PEI 20 textile coatings withaddition of small amounts of gluconic acid or its alkaline, alkalineearth. main group or transition metal salt (e.g. sodium gluconate,potassium gluconate, calcium gluconate, aluminum gluconate, zincgluconate or mixtures thereof) to gluconamide substituted PEI 20 invarious amounts; preferably ranging from 0.000000001 to 1000 gluconateto gluconamide substituted PEI polymer ratio by weight. In certainembodiments, the gluconate will co-crystallize and self assembly withthe gluconamide groups on PEI.

In certain embodiments, Applicant first pre-reacts a portion of theprimary amine groups on PEI with gluconolactone 12 in propylene glycolsolvent thereby forming pendant gluconamide moieties extending outwardlyfrom a portion of the primary amino groups on PEI. In certainembodiments, the remaining primary amines are then neutralized withequimolar equivalents of gluconic acid. The resultant amine gluconatesalts co-crystallize with pendant gluconamides on PEI.

Example 5C

In certain embodiments, Applicant forms a polymeric polyol, wherein aplurality of pendent hydroxyl groups are available to form borate estercomplexes between polymer chains as described hereinabove. In certainembodiments, Applicant reacts substituted silicon polymer 23 withgluconolactone 12 to form substituted polysiloxane 25. In certainembodiments, x is between about 50 and about 1000, y is between about 50and about 1000, and z is between about 50 and about 1000.

In certain embodiments, Applicant reacts substituted polysiloxane 25with a boron material such as and without limitation boric acid, asdescribed herein. In other embodiments, Applicant treats a mixture ofpolysiloxane 24 and one or more of polysiloxanes 9, 11, 13, 20, and/or22, with a boron material to form asymmetrical borate ester complexes.

Example 5D

In certain embodiments, Applicant forms a polymeric polyol, wherein aplurality of pendent hydroxyl groups are available to form borate estercomplexes between polymer chains as described hereinabove. In certainembodiments, Applicant reacts substituted silicon polymer 25 withgluconolactone 12 to form substituted polysiloxane 26. In certainembodiments, a is between about 50 and about 1000. In certainembodiments, b is between about 50 and about 1000.

In certain embodiments, Applicant reacts substituted polysiloxane 26with a boron material such as and without limitation boric acid, asdescribed herein. In other embodiments, Applicant treats a mixture ofpolysiloxane 26 and one or more of polysiloxane 9, 11, 13, 20, 22,and/or 24, with a boron material to form asymmetrical borate estercomplexes.

Example 6

About 0.56 g of Glucono delta lactone (Jungbunzlauer) were dissolved byheating at 98° C. in 2.56 g industrial grade propylene glycol yielding aclear colorless solution henceforth denoted as Solution “A”.

A separate clear, colorless solution (Solution “B”) composed on 0.51 gbranched polyethyleneimine (BASF Lupasol WF PEI) was subsequentlyprepared via dissolution at 65° C. in 0.74 g of propylene glycol.

The contents of Solution A was then mixed at 65° C. with Solution Baccompanied by stirring for 10 minutes. This yielded a clear solutionmixture containing gluconamide substituted polyethyleneimine productsolute.

Table 3 summarizes the formulations used in preparing three (3)embodiment of

TABLE 3 Sample # 5-22-14-01 Sample # 5-22-14-02 Sample # 5-22-14-03 0.80mol GLA/mol PEI 0.327 mol GLA/mol PEI 0.123 mol GLA/mol PEI PrimaryAmine Primary Amine Primary Amine 0.74 g PEI 0.75 g PEI 1.18 g PEI 0.61g GLA 0.25 g GLA 0.15 g GLA 3.06 g Propylene Glycol 3.05 g PropyleneGlycol 3.02 g Propylene Glycol 30.6 Wgt % Gluconamide sub 24.7 Wgt. %Gluconamide sub 30.6 Wgt. % Gluconamide PEI Solute PEI SoluteSubstituted PEI

Referring now to the FIGURE, gluconamide formation was verified by FTIRnoting the disappearance of the 1739 wavenumber carbonyl stretch 110associated with gluconolactone reactant and an appearance of the amideFTIR stretch 120 at 1647-51 wavenumbers for the gluconamide substitutedPEI product.

Reaction of polyol 13 with boric acid 6 yielded borate ester polymer 14.As described hereinabove, in certain embodiments other boron oxides canbe utilized in place of boric acid.

Example 7 Preparation of Borate Ester Polymer 17

Polyol 16 was prepared via ring opening aminolysis reaction betweenLactobionic Acid 15 and polyethyleneimine 8.

Reaction of polyol 16 with boric acid 6 yielded borate ester polymer 17.As described hereinabove, in certain embodiments other boron oxides canbe utilized in place of boric acid.

Example 8 Preparation of Borate Ester Polymer 20

Polyol 19 was prepared via ring opening aminolysis reaction betweenGlycerin Carbonate 18 and polyethyleneimine 8.

Reaction of polyol 19 with boric acid 6 yielded borate ester polymer 20.As described hereinabove, in certain embodiments other boron oxides canbe utilized in place of boric acid.

In Examples 1, 2, 3, 6, 7, and 8, polyols 5, 9, 5/9, 13, 16, and 19,respectively, are reacted with a boron oxide material to formcrosslinked polymers 7, 10, 11, 14, 17, and 20, respectively. In otherembodiments, polyols 5, 9, 5/9, 13, 16, and/or 19, are reacted withother cross-linking agents to formed crosslinked polymers. In certainembodiments, such cross-linking agents are, without limitation, ethylenedichloride ether, diepoxides, polyepoxides, chlorohydrin,chlorotriazines, glucoonates, phosphates, and the like.

During physical activity, the human body produces sweat and otherproteins that can become embedded in the fabric fibers used to formclothing being worn. Certain bacteria and enzymes feed on the proteinsand produce gas (odor) as waste.

Applicant has discovered that fabrics treated with coating comprisingpolymeric borate ester 7, and/or polymeric borate ester 10, and/orpolymeric borate ester 11, and/or polymeric borate ester 14, and/orpolymeric borate ester 17, and/or polymeric borate ester 20, inhibitcertain enzymes from producing odor, and thereby, those treated fabricscontrol odors in such treated garments.

In certain embodiments, polymeric borate ester 7, and/or polymericborate ester 10, and/or polymeric borate ester 11, and/or polymericborate ester 14, and/or polymeric borate ester 17, and/or polymericborate ester 20 can be applied to a fabric using conventional fabriccoating apparatus and methods.

In certain embodiments, a mixture of water and polymeric borate ester 7,and/or polymeric borate ester 10, and/or polymeric borate ester 11,and/or polymeric borate ester 14, and/or polymeric borate ester 17,and/or polymeric borate ester 20, is prepared. In certain embodiments,one or more polymeric borate esters are present in such an aqueousmixture at a weight percentage of between about 0.1 weight percent andabout 10 weight percent. The aqueous mixture can be disposed in aconventional spray bottle. The one or more polymeric borate esters canbe sprayed on a fabric via the spray bottle.

As those of skill in the art will appreciate, garments coated withpolymeric borate ester 7, and/or polymeric borate ester 10, and/orpolymeric borate ester 11, and/or polymeric borate ester 14, and/orpolymeric borate ester 17, and/or polymeric borate ester 20, will fromtime to time need washing. Applicant has developed a detergent for usewhen washing fabrics coated with polymeric borate ester 7, and/orpolymeric borate ester 10, and/or polymeric borate ester 11, and/orpolymeric borate ester 14, and/or polymeric borate ester 17, and/orpolymeric borate ester 20.

Example 9 Detergent for Fabric Treated with Polymeric Borate Ester 7,and/or Polymeric Borate Ester 10, and/or Polymeric Borate Ester 11,and/or Polymeric Borate Ester 14, and/or Polymeric Borate Ester 17,and/or Polymeric Borate Ester 20

About 8.01 g of a 59.7 weight percent aqueous solution oftriethanolamine orthophosphate (e.g. triethanolamine reacted withorthophosphoric acid in 2:1 molar amine:orthophosphoric acidstoichiometry was first prepared. Then 0.42 g of Sasol Novel 23E9 fattyethoxylated alcohol surfactant solution was added dropwise accompaniedby rapid stirring at room temperature to the aqueous triethanolaminephosphate solution. Finally, 10.56 g of an aqueous solution containing20 weight percent of Potassium Tripolyphosphate (KTPP—INNOPHOS) solutewas then added to the above accompanied by rapid stirring. Atransparent, slightly yellow aqueous detergent solution is produced.This detergent solution is compatible and suitable for cleaning fabricswhich have been pre-treated with the aforementioned borate ester-basedodor control coating.

While the preferred embodiments of the present invention have beenillustrated in detail, it should be apparent that modifications andadaptations to those embodiments may occur to one skilled in the artwithout departing from the scope of the present invention.

I claim:
 1. A method to prepare a borate complexed polyalkylguanidiniumpolymer, comprising: heating bis(hexamethylene)triamine and guanidinechloride to prepare a polyalkylguanidinium chloride; reacting saidpolyalkylguanidinium chloride with glycidol in an equimolar amount ofglycidol and secondary amine functionalities present in saidpolyalkylguanidinium chloride to prepare a N-2,3-dihydroxypropylpolyalkylguanidinium chloride polymer; reacting saidN-2,3-dihydroxypropyl polyalkylguanidinium chloride polymer with aboron-oxide material to prepare said borate complexedpolyalkylguanidinium polymer.
 2. The method of claim 1, wherein saidboron-oxide material comprises orthoboric acid.
 3. The method of claim1, wherein said boron-oxide material comprises borax.
 4. The method ofclaim 1, wherein said preparing a polyalkylguanidinium chloride, andwherein said preparing said N-2,3-dihydroxypropyl polyalkylguanidiniumchloride polymer, and wherein said preparing said borate complexedpolyalkylguanidinium polymer, are performed in the same reaction vessel.